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Item Morphological diversity of arabica coffee (Coffea arabica) by in-situ exploration in three agroecosystems West Java, Indonesia(Editora UFLA, 2025-05-20) Maxiselly, Yudithia; Atiningsih, Fukita Ghaury; Rasiska, Siska; Hutapea, Dedi; Bakti, Citra; Wahyudin, Abdillah Azzam; Maharani, YaniArabica coffee, a type of coffee in high demand, is cultivated in various regions. West Java is a significant contributor to Arabica coffee production in Indonesia. This region has various coffee agroecosystems. The research aims to identify the diversity of West Java Arabica coffee cultivated in different agroecosystems. The research involved observing plantation locations of Arabica coffee in Cimaung, Cilengkrang, and Pangalengan, West Java, in three agroecosystems (agroforestry, intercropping area, and residential area). Fifty-two accessions were found and analyzed using the Shannon diversity index for qualitative characters, Principal Component Analysis (PCA), and Cluster analysis. The Shannon diversity index revealed the range between 0.221 and 1.55; the PCA results show a variability of 43.208% on two main components (PC1-PC2), indicating a wide variation for Arabica coffee accessions. The characteristics of fruit, seed, and leaf qualitative traits were influential in determining diversity. The cluster analysis explained the distribution patterns of agroecosystems and the relationship of each accession. It showed a close relationship between agroforestry and residential areas. The cluster analysis also revealed distinct variations of accessions in the agroforestry and residential area at Cilengkrang compared to others. Based on the results, these findings could potentially be used as basic knowledge to develop a new Arabica coffee clone, especially in West Java.Item Diversity pattern on phytochemical traits of coffee bean skin from various species and harvesting methods(Editora UFLA, 2024-11-12) Maxiselly, Yudithia; Bakti, Citra; Renaldi, Gerry; Sari, Dwi Novanda; Nusifera, Sosiawan; Maulana, HarisCoffee is a well-known beverage consumed widely all around the globe. During its processing, a vast amount of waste was generated that can be utilized due to its bioactive compounds beneficial for human health. This study aimed to investigate the diversity pattern of three coffee pulp species based on phytochemical properties (total phenolic content (TPC), caffeine content, and antioxidant activity using the DPPH assay) exhibited by the skin of three coffee bean species: Coffea arabica (Arabica), Coffea canephora (Robusta), and Coffea liberica (Liberica) harvested with different technique (selective and strip picking). This study revealed that species and harvesting techniques significantly influenced the phytochemical properties of the coffee bean skin (CBS). The diversity pattern is shown by Principal Component Analysis (PCA), which has a correlation between Robusta and TPC and Arabica with Caffeine content. The findings from this study show the possibility of utilizing the waste from the coffee industry, especially the skin, to be used further in the development of products with considerable amounts of bioactive compounds.